Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Realizing the Trifunctional Potential of Alkyl 4-Chloro-2-diazo-3-oxobutanoates : Convenient Assembly of 6,7-Dihydro-4 H-[1,2,3]triazolo[5,1-c][1,4]thiazine Core. / Dar'in, Dmitry; Khoroshilova, Olesya; Kantin, Grigory; Krasavin, Mikhail.
в: Synthesis (Germany), Том 52, № 8, 17.04.2020, стр. 1266-1272.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Realizing the Trifunctional Potential of Alkyl 4-Chloro-2-diazo-3-oxobutanoates
T2 - Convenient Assembly of 6,7-Dihydro-4 H-[1,2,3]triazolo[5,1-c][1,4]thiazine Core
AU - Dar'in, Dmitry
AU - Khoroshilova, Olesya
AU - Kantin, Grigory
AU - Krasavin, Mikhail
N1 - Publisher Copyright: © 2020 Georg Thieme Verlag. All rights reserved.
PY - 2020/4/17
Y1 - 2020/4/17
N2 - The first example of exploiting the trifunctional character of alkyl 4-chloro-2-diazo-3-oxobutanoates in the reactions with vicinal N, S-bis-nucleophiles leading to the formation of bicyclic 6,7-dihydro-4 H-[1,2,3]triazolo[5,1-c][1,4]thiazines is presented. The key to the successful realization of the atom-economical synthetic strategy is the initial S N 2 event, which facilitates the subsequent domino 1,2,3-triazole formation via the Wolff reaction. Equally important is the choice of sodium acetate as the base: acetic acid formed in the course of the initial nucleophilic substitution acts as an efficient catalyst for the Wolff reaction, which suppresses the competing, unwanted fragmentation path (observed when other bases are used).
AB - The first example of exploiting the trifunctional character of alkyl 4-chloro-2-diazo-3-oxobutanoates in the reactions with vicinal N, S-bis-nucleophiles leading to the formation of bicyclic 6,7-dihydro-4 H-[1,2,3]triazolo[5,1-c][1,4]thiazines is presented. The key to the successful realization of the atom-economical synthetic strategy is the initial S N 2 event, which facilitates the subsequent domino 1,2,3-triazole formation via the Wolff reaction. Equally important is the choice of sodium acetate as the base: acetic acid formed in the course of the initial nucleophilic substitution acts as an efficient catalyst for the Wolff reaction, which suppresses the competing, unwanted fragmentation path (observed when other bases are used).
KW - diazo transfer
KW - domino reactions
KW - multicenter reactions
KW - nucleophilic substitution
KW - Wolff 1,2,3-triazole synthesis
UR - http://www.scopus.com/inward/record.url?scp=85082855691&partnerID=8YFLogxK
U2 - 10.1055/s-0039-1690802
DO - 10.1055/s-0039-1690802
M3 - Article
AN - SCOPUS:85082855691
VL - 52
SP - 1266
EP - 1272
JO - Synthesis
JF - Synthesis
SN - 0039-7881
IS - 8
ER -
ID: 52865623